XML Loader's done
This commit is contained in:
parent
0fb0abe573
commit
ca0a661a62
|
@ -31,13 +31,27 @@
|
|||
*/
|
||||
package org.lwjgl.util.model.loader;
|
||||
|
||||
import java.util.HashMap;
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
|
||||
import org.lwjgl.util.model.Frame;
|
||||
import org.lwjgl.util.model.Model;
|
||||
import org.lwjgl.util.model.Skin;
|
||||
import org.lwjgl.util.model.Triangle;
|
||||
import org.lwjgl.util.model.Vertex;
|
||||
import org.lwjgl.util.vector.Matrix4f;
|
||||
import org.lwjgl.util.vector.Vector2f;
|
||||
import org.lwjgl.util.vector.Vector3f;
|
||||
import org.w3c.dom.Document;
|
||||
import org.w3c.dom.Element;
|
||||
|
||||
/**
|
||||
* $Id$
|
||||
*
|
||||
* Loads a Model from an XML document.
|
||||
* Loads a Model from an XML document. Construct with an XML Document as the argument,
|
||||
* and then retrieve the Model by calling load().
|
||||
*
|
||||
* @author $Author$
|
||||
* @version $Revision$
|
||||
|
@ -60,6 +74,191 @@ public class Loader {
|
|||
* @throws Exception
|
||||
*/
|
||||
public Model load() throws Exception {
|
||||
return new Model(
|
||||
XMLUtil.getString(src.getDocumentElement(), "material"),
|
||||
loadVertices(),
|
||||
loadTriangles(),
|
||||
loadAnimations(XMLUtil.getInt(src.getDocumentElement(), "bones"))
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load all the Vertices
|
||||
* @return Vertex[]
|
||||
* @throws Exception
|
||||
*/
|
||||
private Vertex[] loadVertices() throws Exception {
|
||||
List vertexElements = XMLUtil.getChildren(src.getDocumentElement(), "vertex");
|
||||
Vertex[] vertices = new Vertex[vertexElements.size()];
|
||||
int vertexCount = 0;
|
||||
for (Iterator i = vertexElements.iterator(); i.hasNext(); ) {
|
||||
Element vertexElement = (Element) i.next();
|
||||
vertices[vertexCount++] = loadVertex(vertexElement);
|
||||
}
|
||||
return vertices;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load all the Triangles
|
||||
* @return Triangle[]
|
||||
* @throws Exception
|
||||
*/
|
||||
private Triangle[] loadTriangles() throws Exception {
|
||||
List triangleElements = XMLUtil.getChildren(src.getDocumentElement(), "triangle");
|
||||
Triangle[] triangles = new Triangle[triangleElements.size()];
|
||||
int triangleCount = 0;
|
||||
for (Iterator i = triangleElements.iterator(); i.hasNext(); ) {
|
||||
Element triangleElement = (Element) i.next();
|
||||
triangles[triangleCount++] = loadTriangle(triangleElement);
|
||||
}
|
||||
return triangles;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load all the animations
|
||||
* @param numBones The number of bones in the animations
|
||||
* @return Map of animation names to Frame[] animations
|
||||
* @throws Exception
|
||||
*/
|
||||
private Map loadAnimations(int numBones) throws Exception {
|
||||
List animationElements = XMLUtil.getChildren(src.getDocumentElement(), "animation");
|
||||
Map animations = new HashMap(animationElements.size());
|
||||
for (Iterator i = animationElements.iterator(); i.hasNext(); ) {
|
||||
Element animationElement = (Element) i.next();
|
||||
animations.put(XMLUtil.getString(animationElement, "name"), loadAnimation(animationElement, numBones));
|
||||
}
|
||||
return animations;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load a Vertex from XML
|
||||
* @param vertexElement
|
||||
* @return a Vertex
|
||||
* @throws Exception
|
||||
*/
|
||||
private Vertex loadVertex(Element vertexElement) throws Exception {
|
||||
List skinElements = XMLUtil.getChildren(vertexElement, "skin");
|
||||
Skin[] skins = new Skin[skinElements.size()];
|
||||
int skinCount = 0;
|
||||
for (Iterator i = skinElements.iterator(); i.hasNext(); ) {
|
||||
Element skinElement = (Element) i.next();
|
||||
skins[skinCount++] = loadSkin(skinElement);
|
||||
}
|
||||
|
||||
return new Vertex(
|
||||
new Vector3f(
|
||||
XMLUtil.getFloat(vertexElement, "x"),
|
||||
XMLUtil.getFloat(vertexElement, "y"),
|
||||
XMLUtil.getFloat(vertexElement, "z")
|
||||
),
|
||||
new Vector3f(
|
||||
XMLUtil.getFloat(vertexElement, "nx"),
|
||||
XMLUtil.getFloat(vertexElement, "ny"),
|
||||
XMLUtil.getFloat(vertexElement, "nz")
|
||||
),
|
||||
new Vector2f(
|
||||
XMLUtil.getFloat(vertexElement, "u"),
|
||||
XMLUtil.getFloat(vertexElement, "v")
|
||||
),
|
||||
skins
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load a Skin from XML
|
||||
* @param element
|
||||
* @return a Skin
|
||||
* @throws Exception
|
||||
*/
|
||||
private Skin loadSkin(Element element) throws Exception {
|
||||
return new Skin(
|
||||
XMLUtil.getInt(element, "bone"),
|
||||
XMLUtil.getFloat(element, "weight")
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load a Triangle from XML
|
||||
* @param element
|
||||
* @return a Triangle
|
||||
* @throws Exception
|
||||
*/
|
||||
private Triangle loadTriangle(Element element) throws Exception {
|
||||
return new Triangle(
|
||||
XMLUtil.getInt(element, "a"),
|
||||
XMLUtil.getInt(element, "b"),
|
||||
XMLUtil.getInt(element, "c"),
|
||||
XMLUtil.getInt(element, "adjacency", 0)
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load an Animation from XML
|
||||
* @param element
|
||||
* @param numBones
|
||||
* @return Frame[]
|
||||
* @throws Exception
|
||||
*/
|
||||
private Frame[] loadAnimation(Element element, int numBones) throws Exception {
|
||||
List frameElements = XMLUtil.getChildren(element, "frame");
|
||||
Frame[] frames = new Frame[frameElements.size()];
|
||||
int frameCount = 0;
|
||||
for (Iterator i = frameElements.iterator(); i.hasNext(); ) {
|
||||
Element frameElement = (Element) i.next();
|
||||
frames[frameCount++] = loadFrame(frameElement, numBones);
|
||||
}
|
||||
return frames;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load a Frame from XML
|
||||
* @param element
|
||||
* @param numBones
|
||||
* @return Frame
|
||||
* @throws Exception
|
||||
*/
|
||||
private Frame loadFrame(Element element, int numBones) throws Exception {
|
||||
List boneElements = XMLUtil.getChildren(element, "bone");
|
||||
if (boneElements.size() != numBones) {
|
||||
throw new Exception("Expected "+numBones+" bones in frame, only got "+boneElements.size());
|
||||
}
|
||||
Matrix4f[] bones = new Matrix4f[boneElements.size()];
|
||||
int boneCount = 0;
|
||||
for (Iterator i = boneElements.iterator(); i.hasNext(); ) {
|
||||
Element boneElement = (Element) i.next();
|
||||
bones[boneCount++] = loadBone(boneElement);
|
||||
}
|
||||
return new Frame(
|
||||
XMLUtil.getFloat(element, "time", 0.0f),
|
||||
bones
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load a Bone from XML
|
||||
* @param element
|
||||
* @return a Matrix4f
|
||||
* @throws Exception
|
||||
*/
|
||||
private Matrix4f loadBone(Element element) throws Exception {
|
||||
Matrix4f ret = new Matrix4f();
|
||||
ret.m00 = XMLUtil.getFloat(element, "m00");
|
||||
ret.m01 = XMLUtil.getFloat(element, "m01");
|
||||
ret.m02 = XMLUtil.getFloat(element, "m02");
|
||||
ret.m03 = XMLUtil.getFloat(element, "m03");
|
||||
ret.m10 = XMLUtil.getFloat(element, "m10");
|
||||
ret.m11 = XMLUtil.getFloat(element, "m11");
|
||||
ret.m12 = XMLUtil.getFloat(element, "m12");
|
||||
ret.m13 = XMLUtil.getFloat(element, "m13");
|
||||
ret.m20 = XMLUtil.getFloat(element, "m20");
|
||||
ret.m21 = XMLUtil.getFloat(element, "m21");
|
||||
ret.m22 = XMLUtil.getFloat(element, "m22");
|
||||
ret.m23 = XMLUtil.getFloat(element, "m23");
|
||||
ret.m30 = XMLUtil.getFloat(element, "m30", 0.0f);
|
||||
ret.m31 = XMLUtil.getFloat(element, "m31", 0.0f);
|
||||
ret.m32 = XMLUtil.getFloat(element, "m32", 0.0f);
|
||||
ret.m33 = XMLUtil.getFloat(element, "m33", 1.0f);
|
||||
return ret;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
@ -0,0 +1,158 @@
|
|||
/*
|
||||
* Copyright (c) 2003 Shaven Puppy Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are
|
||||
* met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* * Neither the name of 'Shaven Puppy' nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
||||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
package org.lwjgl.util.model.loader;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
import org.w3c.dom.Element;
|
||||
import org.w3c.dom.Node;
|
||||
import org.w3c.dom.NodeList;
|
||||
|
||||
/**
|
||||
* Some simple XML utilities
|
||||
* @author cas
|
||||
*/
|
||||
final class XMLUtil {
|
||||
|
||||
/**
|
||||
* @param name The name of the child elements you want
|
||||
* @return a List of child Elements
|
||||
*/
|
||||
static List getChildren(Element element, String name) throws Exception {
|
||||
NodeList nodes = element.getChildNodes();
|
||||
ArrayList ret = new ArrayList(nodes.getLength());
|
||||
for (int i = 0; i < nodes.getLength(); i ++) {
|
||||
Node childNode = (Node) nodes.item(i);
|
||||
if (childNode.getNodeName().equals(name) && childNode.getNodeType() == Node.ELEMENT_NODE) {
|
||||
ret.add(childNode);
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* A convenience method for getting float values out of XML elements
|
||||
* @param attribute The name of the attribute
|
||||
* @throws NumberFormatException If the supplied attribute is not a number
|
||||
* @throws Exception if the value is missing
|
||||
* @return the parsed float value
|
||||
*/
|
||||
static float getFloat(Element element, String attribute) throws Exception {
|
||||
String s = element.getAttribute(attribute);
|
||||
if (s == null || "".equals(s))
|
||||
throw new Exception("Attribute '"+attribute+"' has not been specified for "+element.getNodeName());
|
||||
else
|
||||
return Float.parseFloat(s);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* A convenience method for getting float values out of XML elements
|
||||
* @param attribute The name of the attribute
|
||||
* @param defaultValue The default value to return if no default is specified
|
||||
* @throws NumberFormatException If the supplied attribute is not a number
|
||||
* @return the parsed float value
|
||||
*/
|
||||
static float getFloat(Element element, String attribute, float defaultValue) throws Exception {
|
||||
String s = element.getAttribute(attribute);
|
||||
if (s == null || "".equals(s))
|
||||
return defaultValue;
|
||||
else
|
||||
return Float.parseFloat(s);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* A convenience method for getting integer values out of XML elements
|
||||
* @param attribute The name of the attribute
|
||||
* @throws NumberFormatException If the supplied attribute is not a number
|
||||
* @throws Exception if the value is missing
|
||||
* @return the parsed integer value
|
||||
*/
|
||||
static int getInt(Element element, String attribute) throws Exception {
|
||||
String s = element.getAttribute(attribute);
|
||||
if (s == null || "".equals(s))
|
||||
throw new Exception("Attribute '"+attribute+"' has not been specified for "+element.getNodeName());
|
||||
else
|
||||
return Integer.parseInt(s);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* A convenience method for getting integer values out of XML elements
|
||||
* @param attribute The name of the attribute
|
||||
* @param defaultValue The default value to return if no default is specified
|
||||
* @throws NumberFormatException If the supplied attribute is not a number
|
||||
* @return the parsed integer value
|
||||
*/
|
||||
static int getInt(Element element, String attribute, int defaultValue) throws Exception {
|
||||
String s = element.getAttribute(attribute);
|
||||
if (s == null || "".equals(s))
|
||||
return defaultValue;
|
||||
else
|
||||
return Integer.parseInt(s);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* A convenience method for getting string values out of XML elements
|
||||
* @param attribute The name of the attribute
|
||||
* @return the string value, which will not be null
|
||||
* @throws Exception the value is not specified
|
||||
*/
|
||||
static String getString(Element element, String attribute) throws Exception {
|
||||
String s = element.getAttribute(attribute);
|
||||
if (s == null || "".equals(s))
|
||||
throw new Exception("Attribute '"+attribute+"' has not been specified for "+element.getNodeName());
|
||||
else
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* A convenience method for getting string values out of XML elements
|
||||
* @param attribute The name of the attribute
|
||||
* @param defaultValue The default value to return if no default is specified
|
||||
* @return the string value, which will not be null
|
||||
*/
|
||||
static String getString(Element element, String attribute, String defaultValue) throws Exception {
|
||||
String s = element.getAttribute(attribute);
|
||||
if (s == null || "".equals(s))
|
||||
return defaultValue;
|
||||
else
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
Loading…
Reference in New Issue